Please provide a screen shot of the Health tab
after the Error Scan you ran.
There are known problems where HD Tune Pro will start spitting out craploads of supposed errors even though there are none. I've seen this happen as a result of Windows dropping devices off the bus as well.
I would also like to see a screen shot of the Health tab taken
after you run a
another Error Scan (and only if it experiences the error conditions shown similar to that of the your previous screenshot). This gives me before-and-after shots to compare.
All that said -- based on the Health tab of your first screenshot, your drive is in perfect condition, but I need to see the output post-Error-Scan.
Finally, there is no "high failure rate" seen with WD Caviar Blue drives. The Subject line in question is speculative at best, and very implicative without substantiated evidence (i.e. it implies "problems with a series of drives" without a sufficiently large sample of drives to prove that). Not raggin' on ya or anything, just saying it comes off/reads that way.